package com.zzy.center.mapper;

import com.zzy.center.entity.UcenterMember;
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;

/**
 * <p>
 * 会员表 Mapper 接口
 * </p>
 *
 * @author KAZU
 * @since 2023-01-19
 */
@Mapper
public interface UcenterMemberMapper extends BaseMapper<UcenterMember> {
	
	/**
	 * 查询某一天的注册人数
	 * @return
	 * @param day
	 * */
	Integer countRegisterDay(@Param("day") String day);
}
